Chromium Ore

Overview
Chromium Ore is one of the best ores in the game, and it gleams a shiny white. It spawns in only 3 locations out of the possible amount of locations per server. It is the 2nd rarest ore in the game, below the rarity of Mithril Ore. Many players do not know the locations of these, and tend to ask for them. It makes for a great trading resource.

It's refined form, Refined Chromium, is used for many end-game recipes.